The Delta Star medium-power product list goes far beyond power transformers. We have a strong reputation for providing the flexibility to build Auto and Ground Transformers, Voltage Regulators, Mobile Circuit Protectors, and Mobile and Portable Substations. As a result, Delta Star is the only North American transformer manufacturer with the breadth of products to meet all your power needs.

Below is a partial list of our capabilities, including MVA and voltages:

Type	MVA	HV kV*	LV kV
Power Transformers	10 – 200	15 – 345	4 – 115
Auto Transformers	15 – 300	69 – 345	34.5 – 161
Voltage Regulators	20 – 83	15 – 115	+/-10-15% Regulation
Grounding Transformer	-	15 – 115	Custom Z% or I-fault
Generator Step-up & Unit Auxilaries	10 – 167	15 – 345	4 – 115
Mobile Substations	<100 (ODAF)	25 – 230	2.4 – 69
Portable Substations	10 – 200	15 – 230	4 – 115
Mobile Circuit Protection	-	15 - 230	-